Robert



(No Model.) v 2 Sheets-Sheet 1.

R. G. TUGKEB. ROOF LEAD-BR, -&c.

No. 581,893. Patented May 4, 1897.

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(No Model.) 2 Sheets-Sheet 2, R G. TUCKER.

ROOF LEADER, &c.

'N0.'581,'893. Patented May 4, 1897.

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WITNESSES: mvmran MQ ATTORNEY ROBERT C. TUCKER, OF NE\V YORK, N. Y.

ROOF-LEADER, as.

SPECIFICATION forming part of Letters Patent No. 581,893, dated May 4, 1897.

. A plication filed January 21,1896. Serial No. 576,315. (No model.)

To aZZ whom it may concern:

Be it known that I, ROBERT C. TUCKER, a citizen of the United States, and a resident of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Roof-Leaders, &:c., of which the following is a specification.

My invention relates especially to that class of roof-leaders for which Letters Patent of the United States were granted to me on the 19th day of November, 1895, No. 550,032; and the novel features of my present structure are particularly directed to the construction of the strainer-cage at the entrance of the leader in conjunction with the ventilating-tube and a cross-sectional part thereof for increasing the draft, as will be hereinafter morefully described.

In the accompanying drawings, Figure I represents a side-view of the strainer-cage and ventilating-tubes connected thereto de tached. Fig. II represents a vertical central section thereof as it appears when applied to a roof-leader pipe. Fig. III represents a plan or top View of the strainer-cage, omitting the caps of the ventilating-tube and its branch. Fig. IV represents a side View of the cage and tubes as applied to what is known as a back air-pipe. Fig.V represents a modification of the ventilating-tube.

Similar letters of reference represent similar parts.

The letter A represents the strainer-cage, which is formed of cast metal, as iron, and in sections, in this example three in number, Which are marked, respectively, A A A The cage is of substantially the usual form,and its lower part is fitted into the upper end of the leader-pipe B (shown in Fig. II) or the back air-pipe 0, (shown in Fig. IV,) it being understood that my invention is equally applicable to either of the pipes named.

Extending through the strainer-cage A is the ventilating-tube D, which has near its upper end a cross-sectional part D, extending from the inside of the leader-pipe or the back air-pipe to the outside thereof independently of the main ventilating-tube,as clearly shown, both the main tube D and its branch partD being provid d with a cap D or D at its outer upper end.

of the building, as will readily suggest itself to a skilled plumber.

The effect of the cross-sectional part or branch D of the main ventilating-tube D is to materially increase the draft through the pipe to which my invention may be applied, and in order to further increase such draft I may use additional branches D D as indicated in Fig. V. 7

What I claim as myinvention, and desire to secure by Letters Patent, is

1. A strainer-cage for a roof water-leader or other similar pipe, formed of castmetal in vertically-divided sections, substantially as and for the purpose herein described.

2. A strainer-cage for a roof water-leader or other similar pipe, formed of cast metal in vertical1y-divided sections, in combination with a ventilating-tube extending through and supported by said cage, substantially as and for the purpose herein described.

3. A ventilating-tube for a roof-leader or other similar pipe formed at its upper end with an inclined cross-sectional part which extends from the inside of the leader or other pipe to the outside thereof independently of the main ventilating-tube, substantially as and for the purpose herein described.

l. The combination with a strainer-cage formed of cast metal in horizontally-divided sections, of the ventilating-tube which is formed at its upper end with an inclined crosssectional part to extend from the inside of the leader or other pipe to the outside thereof independently of the main ventilating-tube, said ventilating-tube and its cross-sectional part being arranged to extend through and being supported by the cage, substantially as and for the purpose herein described.

ROBERT C. TUCKER.

lVitn esses:

OHAs. WAHLnRs, Trros. H. RoNAYNn. 

